Oriental emerald

noun

1. a green variety of corundum used as a gemstone

Example Sentences

The colourless basis of the true Oriental precious stones being taken as crystallized alumina or white sapphire, when the colouring matter is red the stone is called ruby, when blue sapphire, when green Oriental emerald, when orange-yellow Oriental topaz, and when violet Oriental amethyst.

From Project Gutenberg

The Oriental Emerald.—The stone known as emerald consists chemically of silica, alumina and glucina.

From Project Gutenberg

This is called the Oriental emerald, and, owing to its beauty of colour, its hardness and rarity, it is more highly prized than the emerald itself and commands higher prices.

From Project Gutenberg

The Oriental emerald has been produced artificially in the same way as the ruby, by adding a larger amount of chromium to the alumina bath and regulating the temperature.

From Project Gutenberg

The Oriental emerald is a variety of the ruby, of a green colour, and is an extremely rare gem.

From Project Gutenberg